1535001130121 has 2 divisors, whose sum is σ = 1535001130122. Its totient is φ = 1535001130120.

The previous prime is 1535001130099. The next prime is 1535001130141. The reversal of 1535001130121 is 1210311005351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1455736358521 + 79264771600 = 1206539^2 + 281540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1535001130121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1535001130141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 767500565060 + 767500565061.

It is an arithmetic number, because the mean of its divisors is an integer number (767500565061).

Almost surely, 2^{1535001130121} is an apocalyptic number.

It is an amenable number.

1535001130121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1535001130121 is an equidigital number, since it uses as much as digits as its factorization.

1535001130121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 23.

Adding to 1535001130121 its reverse (1210311005351), we get a palindrome (2745312135472).

The spelling of 1535001130121 in words is "one trillion, five hundred thirty-five billion, one million, one hundred thirty thousand, one hundred twenty-one".